primitive reptile having no opening in the temporal region of the skull; all extinct except turtles
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.
26,102
words currently have published synonym-style alternatives
90,593
searchable synonym connections
350,924
published thesaurus relationships of every type
Start with the meaning
Actinozoan
sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
42
useful connections shown
0 reviewed relationships and
42 broader connections.
Reviewed set in progress
No hand-reviewed synonym set has been published for this word yet.
The broader connections below can still help you explore, but they are labelled by the evidence joining the words and should not automatically be treated as substitutes.
Explore further
Words from the same subject
These terms belong to the same specialist field or topic. They help you explore the subject, but they are not automatically synonyms.
primitive reptile having no opening in the temporal region of the skull; all extinct except turtles
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.air-breathing arthropods characterized by simple eyes and four pairs of legs
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.air-breathing arthropods characterized by simple eyes and four pairs of legs
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.horseshoe crab of the coast of eastern Asia
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.chiefly nocturnal predacious arthropod having a flattened body of 15 to 173 segments each with a pair of legs, the foremost pair being…
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.used in some classifications; includes the orders Xiphosura and Eurypterida
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp a…
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp a…
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.reptile having a pair of openings in the skull behind each eye
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.reptile having a pair of openings in the skull behind each eye
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.used in former classifications to include all living reptiles except turtles; superseded by the two subclasses Lepidosauria and Archos…
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.large extinct scorpion-like arthropod considered related to horseshoe crabs
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.mammals having a placenta; all mammals except monotremes and marsupials
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.mammals having a placenta; all mammals except monotremes and marsupials
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.small nonvenomous arachnid resembling a tailless scorpion
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.animals that nourish their young with milk
Used in the same subject area: Biology, Nature and environment, Animals, Zoology.
Explore further
Words connected by meaning
Their definitions overlap or refer to similar ideas. Use these to widen your search, then compare the exact meanings.
marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.In certain hydroids, an imperfect zooid, whose special function is to produce medusoid buds. See Hydroidea, and Athecata.
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.sessile aquatic animal forming mossy colonies of small polyps each having a curved or circular ridge bearing tentacles; attach to ston…
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.a family of coelenterates
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.a genus of coelenterates
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.Of or pertaining to a colony; as, colonial rights, traffic, wars.
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.marine colonial polyp characterized by a calcareous skeleton; masses in a variety of shapes often forming reefs
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arrange…
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.A title of honor given to certain high dignitaries, esp. to viceroys, ministers, and ambassadors, to English colonial governors, etc.…
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.(physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and s…
Its definition shares important concepts with this word: sessile, marine, coelenterates, including, solitary.
All dictionary tools
Explore Academic Dictionary
The same nine destinations available from the header menu are shown here as a clear, fully visible grid.
Aa
Dictionary
Definitions and meanings
⇄
Thesaurus
Synonyms with nuance
¶
Academic writing
Evidence and analysis
✓
Professional
Workplace vocabulary
⌛
Word origins
Etymology and roots
∑
Subjects
Specialist dictionaries
⠿
Word clusters
Connected vocabulary
≈
Word similarity
Compare two words
#
Crossword
Play with vocabulary